Privatized Canadian federal buildings.

1.)  The government of Prime Minister John Diefenbaker either sold or gave away a Canada Post building in Toronto to E. P. Taylor. A company owned by newspaper baron Conrad Black occupied  the landmark for years.

10 Toronto Street, Toronto Ontario. (Photo from Wikipedia).

2.) The Mulroney government privatized the RCMP Headquarters at 255 Jarvis Street in Toronto, and moved all the staff to London, Ontario. The edifice is now a high rise hotel, the Grand Hotel and Suites.
3.)  The Hamilton, Ontario Canadian National Railway Station is a banquet hall and filming location---for the second and third seasons of "The Good Witch" starring Catherine Bell; and a movie called "Stockholm" starring Ethan Hawke.
4.)  Brian Mulroney decommissioned the Canada Post Mail Distribution Centre on 30 Bay Street Toronto, so that the Air Canada Centre could be constructed.